Radiology Key

Fig. 50.1 Radiographic and computed tomographic evaluation of osteolysis of left hip of a 46-year-old man with osteonecrosis of femoral head. (a) An anteroposterior view of left hip before the…

Citation Observation Types of patients Bonfiglio [10] Thrombosed arteries Dysbaric osteonecrosis Ficat and Arlet [1] Arteriolar thromboses Etiology not noted Spencer and Brookes [11] Thrombus observed in multiple intraosseous vessels…

1. Collapse of the femoral head without joint-space narrowing or acetabular abnormality on x-rays (including crescent sign) 2. Demarcating sclerosis in the femoral head without joint-space narrowing or acetabular abnormality…

Fig. 22.1 An intraoperative photograph shows the pus-like (yellowish and turbid) joint fluid gushed from the hip joint (Reprint permission for Springer-Verlag) 22.5 Erroneous Leukocytosis of Joint Fluid by Automated…

Fig. 28.1 ARCO international classification of osteonecrosis Stage 0: All diagnostic studies are normal and diagnosis is made by histology only. A painful hip in a patient who has either…

Fig. 27.1 A is the angle of necrotic area in mid-coronal image and B is the angle of necrotic area in midsagittal image. The angle is measured at the subchondral…

Stage Criteria 0 Normal or nondiagnostic radiograph, bone scan, and MRI I Normal radiograph; abnormal bone scan and/or MRI A – Mild (<15 % of head affected) B – Moderate…

System Adverse effects Metabolic/endocrine Weight gain/obesity, fluid retention/edema, hypokalemia, diabetes mellitus/insulin resistance, adrenal insufficiency, amenorrhea Dermatologic Skin thinning, purpura, Cushingoid appearance, acne, hirsutism Ophthalmologic Posterior subcapsular cataract, glaucoma, central serous…

Fig. 9.1 Common pathway of developing osteonecrosis of the femoral head 9.2 Methods of Genetic Study Various genetic studies had been developed and changed rapidly to identify disease-associated loci or…